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Finding the Fourth Proportional to 117,972.16, 162,799.32 and 64,256.56

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Solution

The fourth proportional to 117,972.16, 162,799.32 and 64,256.56 is: 88,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,972.16 : 162,799.32 = 64,256.56 : x
  2. Step 2: Convert to fraction form
    117,972.16/162,799.32 = 64,256.56/x
  3. Step 3: Cross multiply
    117,972.16x = 162,799.32 × 64,256.56
  4. Step 4: Simplify right side
    117,972.16x = 10,460,924,273.54
  5. Step 5: Solve for x
    x = 10,460,924,273.54/117,972.16
  6. Step 6: Final answer
    x = 88,672.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.